| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable to certainly return to liquid an overcooling substance solidified by phase transition in a fuel cell system with a radiator. <P>SOLUTION: A part of the interior of a fuel cell stack 10 is made a tube passage of and a circulation cooling system 23 having a radiator 21 is installed on the way of the tube passage, and a supercooling substance M is circulated in the circulation cooling system 23. By operating a trigger 25, the supercooling substance M can be phase-transited from liquid into solid, and thereby the fuel cell stack 10 can be heated. Then, by operating a heater 26 installed at the tube passage portion on the outside of the fuel cell stack 10 in the circulation cooling system 23, and the circulation cooling system 23 solidified can be certainly returned to liquid. <P>COPYRIGHT: (C)2008,JPO&INPIT |
